Did the vet do a scraping? Or did s/he just say it's not mange? I think I'd go to another vet for a second opinion. If the second vet said it was mange-I'd make a stink at the first vet and try to see if you can get them to pay for some of the costs...either what they charged-for the drugs that did nothing, or your costs at the second vet-since it's because of the original vet's diagnosis (or lack of) that you had to get a second opinion.

This could also be caused by allergies in food. Curly had the same symptoms, and after trial and error I found that she was allergic to Chicken, corn, and Febreeze. She also has small bits of dryness from beef. There are many allergy threads in Health on this if you'd like to check them out.

Also, can you tell us about yourself? The mods will want more of an intro to approve you to the rest of the board.